Giants Editor Farming Simulator 25 (FS25). Giants Editor (GE) is used to create and edit FS25 modifications aka FS25 Mods.
If you are grateful for all the work PMC has done in the past 25 years, use Support PMC page.
For background knowledge see also Giants Editor FS17 and Giants Editor FS19 pages, most of the fundamental information there still applies in FS25 version.
Where Is Giants Editor Log File
New Mod From Game Giants Editor
This was frequently asked question on those days leading up to Giants Editor v10 initial release. Question: FS25 Giants Editor do other community mod developers have it? (like some "famous" devs). Answer: MrMarcel5 who is Giants Software employee have said repeatedly that nobody outside giants has Giants Editor v10.
For latest updates and developments check PMC Tactical Forum "Giants Editor v10 for Farming Simulator 25" topic.
Another interesting terrain development read PMC Tactical Forum "Terrain Editing daily updates while waiting for Giants Editor v10 release" topic.